So I was trying to host my first Django app on heroku.
Took help form some Youtube channels. I used postgresql as my database. Now when I tried hosting my app on heroku the following error is showing up:
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?```
**This is the error showing**
run postgres -D /usr/local/var/postgres The result of this should be:
FATAL: lock file "postmaster.pid" already exists
HINT: Is another postmaster (PID 379) running in data directory
"/usr/local/var/postgres"?
Then type kill -9 PID in HINT
Let me know if this works for you?
Related
I recently finished my django project and i switched my database from the local SQLite database, provided by django, to an online postgreSQL database provided by elephantSQL. Clearly, by entering my database credential in the setings.py file of my django project i am able to migrate to my new database locally while not on my host's bash console. Meaning that, when i run my server on port 8000 it loads my data from the postgreSQL, but when i push my website to PythonAnywhere and try to run my migrations from the bash console of PythonAnywhere it throws out the following error:`
django.db.utils.OperationalError: connection to server at "'USER'.db.elephantsql.com" ("DATABASE_IP"), port 5432 failed: Connection refused
Is the server running on that host and accepting TCP/IP connections?
`
I even changed my database Host from elephanSQL to nhost, but still it promps the same result.
How do I connect my Django App to Postgres Databse?
Whenever I run python manage.py makemigrations after the changes, then I get this kind of error. How can I fix it?
Got an error checking a consistent migration history performed for database connection 'default': connection to server
at "localhost" (::1), port 5432 failed: Connection refused (0x0000274D/10061)
Is the server running on that host and accepting TCP/IP connections?
connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused (0x0000274D/10061)
Is the server running on that host and accepting TCP/IP connections?
warnings.warn(
No changes detected
Seems like your postgres server is not running. I would suggest you to ensure that postgres server is running and you are able to connect to it.
You can use your terminal or any DB tool like PgAdmin, DBeaver, Tableplus etc.
After you are able to connect to your database through any of the above mentioned ways. Django db connection should not be a problem.
You can take help from
https://tableplus.com/blog/2018/10/how-to-start-stop-restart-postgresql-server.html
https://www.enterprisedb.com/postgres-tutorials/connecting-postgresql-using-psql-and-pgadmin
I am following this tutorial to upload my existing Django project running locally on sqlite to Google Cloud Run / Postgres.
I have the cloud_sql_proxy service running and can sign into Postgres from the command line.
I am at the point of running the command
python manage.py migrate
And I get the error:
django.db.utils.OperationalError: connection to server on socket "/cloudsql/cgps-registration-2:us-central-1:cgps-reg-2-postgre-sql/.s.PGSQL.5432" failed: No such file or directory
Is the server running locally and accepting connections on that socket?
The answer to that questions is Yes, the server is running locally and accepting connections because I can log in with the Postgres client:
agerson#agersons-iMac ~ % psql "sslmode=disable dbname=postgres user=postgres hostaddr=127.0.0.1"
Password for user postgres:
psql (14.1, server 13.4)
Type "help" for help.
postgres=>
I double checked the connection string in my .env file and it has the correct UN / P
Is this scoket not getting created somehow in a previous step?
/cloudsql/cgps-registration-2:us-central-1:cgps-reg-2-postgre-sql/.s.PGSQL.5432
It looks like there's a mismatch between what the app is looking for and how you're launching the proxy. The error explains the problem.
You're launching the proxy like this with an incorrect region name (us-central):
cloud_sql_proxy -instances="cgps-registration-2:us-central:cgps-reg-2-postgre-sql=tcp:5432
But the app is looking for us-central1. Try this (omitting the =tcp:5432 to create a Unix socket):
cloud_sql_proxy -instances="cgps-registration-2:us-central1:cgps-reg-2-postgre-sql
I am trying to deploy my django project to a unix server. When I run the command to create the PostgreSQL database using SSH, I encounter the following error:
$ createdb elections
createdb: could not connect to database template1: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
Does the error mean running 'locally' as in the server or my machine?
What is stopping it from connecting to the server?
How do I fix the error?
I'm trying to run a django migration to update my database, but "manage.py migrate" can't connect to my postgresql db. The odd thing is: my django website (which is exactly the same code) is working including connecting to the db.
Error messages:
psycopg2.OperationalError: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.xxxxxx"?
and
django.db.utils.OperationalError: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL
Workaround: Change HOST variable to either localhost or 127.0.0.1 .
see: https://community.webfaction.com/questions/21072/django-website-working-but-django-managepy-cannot-connect-to-db